import java.util.Scanner;

public class Main1655 {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int a= sc.nextInt();
        int b=sc.nextInt();
        if (a==b){
            System.out.println("Y");
            System.out.println(a*b);
        }else
        {System.out.println("N");
            System.out.println(a*b);}
    }
}
